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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 18-21 |
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jorag M, Kavosh Tehrani M, Mousavi Fard S S. Calculation of angular and spectral bandwidth of volume grating as input coupler in image waveguide display. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :18-21
URL: http://opsi.ir/article-1-2770-en.html
URL: http://opsi.ir/article-1-2770-en.html
Abstract: (715 Views)
The angular and spectral bandwidth of the volume grating, which is used as the input coupling in the image waveguide display, is affected on the field of view and color uniformity of the received final image. In this paper, using the coupled wave theory, the angular and spectral bandwidth of the transmission and reflection volume grating as input coupler in image waveguide display are plotted using the MATLAB software along the wavelength of the visible region. The result shows that the angular bandwidth of the reflection grating is more than the transmition one and therefore its field of view is more limited. Also, the spectral bandwidth of reflection grating is less than transmition one and as a result has better color uniformity.
Type of Study: Experimental |
Subject:
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